Because "deal". Why implement an aithentication when you can use the Google/Apple/Microsoft one ? It's free. You only have to make a "deal" and give them all yo

Because "deal". Why implement an aithentication when you can use the Google/Apple/Microsoft one ? It's free. You only have to make a "deal" and give them all your data (which they have anyway, because they run the keylogger on your device).